Mark Scheme (Results) Summer 2016 - Edexcel

Mark Scheme (Results)

Summer 2016

Pearson Edexcel GCE

in Chemistry (6CH04) Paper 01

General Principles of Chemistry I

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Summer 2016

Publications Code 46660_MS*

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? Pearson Education Ltd 2016

General Marking Guidance

?

All candidates must receive the same treatment. Examiners must mark

the first candidate in exactly the same way as they mark the last.

? Mark schemes should be applied positively. Candidates must be rewarded

for what they have shown they can do rather than penalised for

omissions.

? Examiners should mark according to the mark scheme not according to

their perception of where the grade boundaries may lie.

? There is no ceiling on achievement. All marks on the mark scheme should

be used appropriately.

? All the marks on the mark scheme are designed to be awarded. Examiners

should always award full marks if deserved, i.e. if the answer matches the

mark scheme. Examiners should also be prepared to award zero marks if

the candidate¡¯s response is not worthy of credit according to the mark

scheme.

? Where some judgement is required, mark schemes will provide the

principles by which marks will be awarded and exemplification may be

limited.

? When examiners are in doubt regarding the application of the mark

scheme to a candidate¡¯s response, the team leader must be consulted.

? Crossed out work should be marked UNLESS the candidate has replaced it

with an alternative response.

?

Mark schemes will indicate within the table where, and which strands

of QWC, are being assessed. The strands are as follows:

i) ensure that text is legible and that spelling, punctuation and

grammar are accurate so that meaning is clear

ii) select and use a form and style of writing appropriate to purpose

and to complex subject matter

iii) organise information clearly and coherently, using specialist

vocabulary when appropriate

Using the Mark Scheme

Examiners should look for qualities to reward rather than faults to penalise. This

does NOT mean giving credit for incorrect or inadequate answers, but it does mean

allowing candidates to be rewarded for answers showing correct application of

principles and knowledge. Examiners should therefore read carefully and consider

every response: even if it is not what is expected it may be worthy of credit.

The mark scheme gives examiners:

? an idea of the types of response expected

? how individual marks are to be awarded

? the total mark for each question

? examples of responses that should NOT receive credit.

/ means that the responses are alternatives and either answer should receive full

credit.

( ) means that a phrase/word is not essential for the award of the mark, but helps

the examiner to get the sense of the expected answer.

Phrases/words in bold indicate that the meaning of the phrase or the actual word

is essential to the answer.

ecf/TE/cq (error carried forward) means that a wrong answer given in an earlier

part of a question is used correctly in answer to a later part of the same question.

Candidates must make their meaning clear to the examiner to gain the mark. Make

sure that the answer makes sense. Do not give credit for correct words/phrases

which are put together in a meaningless manner. Answers must be in the correct

context.

Quality of Written Communication

Questions which involve the writing of continuous prose will expect candidates to:

? write legibly, with accurate use of spelling, grammar and punctuation in order to

make the meaning clear

? select and use a form and style of writing appropriate to purpose and to complex

subject matter

? organise information clearly and coherently, using specialist vocabulary when

appropriate.

Full marks will be awarded if the candidate has demonstrated the above abilities.

Questions where QWC is likely to be particularly important are indicated (QWC) in

the mark scheme, but this does not preclude others.

Section A (multiple choice)

Question

Number

1

Question

Number

2

Question

Number

3

Question

Number

4(a)

Question

Number

4(b)

Question

Number

5(a)

Question

Number

5(b)

Question

Number

5(c)

Question

Number

5(d)

Question

Number

5(e)

Question

Number

6(a)

Question

Number

6(b)

Correct Answer

Reject

D

Correct Answer

(1)

Reject

D

Correct Answer

Reject

Reject

Reject

Reject

Reject

Reject

Reject

Reject

A

Mark

(1)

Reject

B

Correct Answer

Mark

(1)

B

Correct Answer

Mark

(1)

C

Correct Answer

Mark

(1)

D

Correct Answer

Mark

(1)

C

Correct Answer

Mark

(1)

D

Correct Answer

Mark

(1)

A

Correct Answer

Mark

(1)

C

Correct Answer

Mark

(1)

D

Correct Answer

Mark

Mark

(1)

Reject

Mark

(1)

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